package net.minecraft.command;

import com.google.common.collect.Lists;
import java.util.List;
import net.minecraft.block.Block;
import net.minecraft.block.state.IBlockState;
import net.minecraft.init.Blocks;
import net.minecraft.inventory.IInventory;
import net.minecraft.nbt.JsonToNBT;
import net.minecraft.nbt.NBTException;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.BlockPos;
import net.minecraft.world.World;

public class CommandFill extends CommandBase {
	/**
	 * Gets the name of the command
	 */
	public String getCommandName() {
		return "fill";
	}

	/**
	 * Return the required permission level for this command.
	 */
	public int getRequiredPermissionLevel() {
		return 2;
	}

	/**
	 * Gets the usage string for the command.
	 */
	public String getCommandUsage(ICommandSender sender) {
		return "commands.fill.usage";
	}

	/**
	 * Callback when the command is invoked
	 */
	public void processCommand(ICommandSender sender, String[] args) throws CommandException {
		if (args.length < 7) {
			throw new WrongUsageException("commands.fill.usage", new Object[0]);
		} else {
			sender.setCommandStat(CommandResultStats.Type.AFFECTED_BLOCKS, 0);
			BlockPos blockpos = parseBlockPos(sender, args, 0, false);
			BlockPos blockpos1 = parseBlockPos(sender, args, 3, false);
			Block block = CommandBase.getBlockByText(sender, args[6]);
			int i = 0;

			if (args.length >= 8) {
				i = parseInt(args[7], 0, 15);
			}

			BlockPos blockpos2 = new BlockPos(Math.min(blockpos.getX(), blockpos1.getX()),
					Math.min(blockpos.getY(), blockpos1.getY()), Math.min(blockpos.getZ(), blockpos1.getZ()));
			BlockPos blockpos3 = new BlockPos(Math.max(blockpos.getX(), blockpos1.getX()),
					Math.max(blockpos.getY(), blockpos1.getY()), Math.max(blockpos.getZ(), blockpos1.getZ()));
			int j = (blockpos3.getX() - blockpos2.getX() + 1) * (blockpos3.getY() - blockpos2.getY() + 1)
					* (blockpos3.getZ() - blockpos2.getZ() + 1);

			if (j > 32768) {
				throw new CommandException("commands.fill.tooManyBlocks",
						new Object[] { Integer.valueOf(j), Integer.valueOf(32768) });
			} else if (blockpos2.getY() >= 0 && blockpos3.getY() < 256) {
				World world = sender.getEntityWorld();

				for (int k = blockpos2.getZ(); k < blockpos3.getZ() + 16; k += 16) {
					for (int l = blockpos2.getX(); l < blockpos3.getX() + 16; l += 16) {
						if (!world.isBlockLoaded(new BlockPos(l, blockpos3.getY() - blockpos2.getY(), k))) {
							throw new CommandException("commands.fill.outOfWorld", new Object[0]);
						}
					}
				}

				NBTTagCompound nbttagcompound = new NBTTagCompound();
				boolean flag = false;

				if (args.length >= 10 && block.hasTileEntity()) {
					String s = getChatComponentFromNthArg(sender, args, 9).getUnformattedText();

					try {
						nbttagcompound = JsonToNBT.getTagFromJson(s);
						flag = true;
					} catch (NBTException nbtexception) {
						throw new CommandException("commands.fill.tagError",
								new Object[] { nbtexception.getMessage() });
					}
				}

				List<BlockPos> list = Lists.<BlockPos>newArrayList();
				j = 0;

				for (int i1 = blockpos2.getZ(); i1 <= blockpos3.getZ(); ++i1) {
					for (int j1 = blockpos2.getY(); j1 <= blockpos3.getY(); ++j1) {
						for (int k1 = blockpos2.getX(); k1 <= blockpos3.getX(); ++k1) {
							BlockPos blockpos4 = new BlockPos(k1, j1, i1);

							if (args.length >= 9) {
								if (!args[8].equals("outline") && !args[8].equals("hollow")) {
									if (args[8].equals("destroy")) {
										world.destroyBlock(blockpos4, true);
									} else if (args[8].equals("keep")) {
										if (!world.isAirBlock(blockpos4)) {
											continue;
										}
									} else if (args[8].equals("replace") && !block.hasTileEntity()) {
										if (args.length > 9) {
											Block block1 = CommandBase.getBlockByText(sender, args[9]);

											if (world.getBlockState(blockpos4).getBlock() != block1) {
												continue;
											}
										}

										if (args.length > 10) {
											int l1 = CommandBase.parseInt(args[10]);
											IBlockState iblockstate = world.getBlockState(blockpos4);

											if (iblockstate.getBlock().getMetaFromState(iblockstate) != l1) {
												continue;
											}
										}
									}
								} else if (k1 != blockpos2.getX() && k1 != blockpos3.getX() && j1 != blockpos2.getY()
										&& j1 != blockpos3.getY() && i1 != blockpos2.getZ() && i1 != blockpos3.getZ()) {
									if (args[8].equals("hollow")) {
										world.setBlockState(blockpos4, Blocks.air.getDefaultState(), 2);
										list.add(blockpos4);
									}

									continue;
								}
							}

							TileEntity tileentity1 = world.getTileEntity(blockpos4);

							if (tileentity1 != null) {
								if (tileentity1 instanceof IInventory) {
									((IInventory) tileentity1).clear();
								}

								world.setBlockState(blockpos4, Blocks.barrier.getDefaultState(),
										block == Blocks.barrier ? 2 : 4);
							}

							IBlockState iblockstate1 = block.getStateFromMeta(i);

							if (world.setBlockState(blockpos4, iblockstate1, 2)) {
								list.add(blockpos4);
								++j;

								if (flag) {
									TileEntity tileentity = world.getTileEntity(blockpos4);

									if (tileentity != null) {
										nbttagcompound.setInteger("x", blockpos4.getX());
										nbttagcompound.setInteger("y", blockpos4.getY());
										nbttagcompound.setInteger("z", blockpos4.getZ());
										tileentity.readFromNBT(nbttagcompound);
									}
								}
							}
						}
					}
				}

				for (BlockPos blockpos5 : list) {
					Block block2 = world.getBlockState(blockpos5).getBlock();
					world.notifyNeighborsRespectDebug(blockpos5, block2);
				}

				if (j <= 0) {
					throw new CommandException("commands.fill.failed", new Object[0]);
				} else {
					sender.setCommandStat(CommandResultStats.Type.AFFECTED_BLOCKS, j);
					notifyOperators(sender, this, "commands.fill.success", new Object[] { Integer.valueOf(j) });
				}
			} else {
				throw new CommandException("commands.fill.outOfWorld", new Object[0]);
			}
		}
	}

	public List<String> addTabCompletionOptions(ICommandSender sender, String[] args, BlockPos pos) {
		return args.length > 0 && args.length <= 3 ? func_175771_a(args, 0, pos)
				: (args.length > 3 && args.length <= 6 ? func_175771_a(args, 3, pos)
						: (args.length == 7 ? getListOfStringsMatchingLastWord(args, Block.blockRegistry.getKeys())
								: (args.length == 9
										? getListOfStringsMatchingLastWord(args,
												new String[] { "replace", "destroy", "keep", "hollow", "outline" })
										: (args.length == 10 && "replace".equals(args[8])
												? getListOfStringsMatchingLastWord(args, Block.blockRegistry.getKeys())
												: null))));
	}
}
